[v6.1] general protection fault in f2fs_drop_extent_tree

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: e84a4e368abe Linux 6.1.35
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1473b6c0a80000
kernel config: https://syzkaller.appspot.com/x/.config?x=a69b5c9de715622a
dashboard link: https://syzkaller.appspot.com/bug?extid=0dec0d21787ade9225f0
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14d26123280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15682e00a80000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/3c7fedd1a86d/disk-e84a4e36.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/8b34c6296ed7/vmlinux-e84a4e36.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a88164798cc2/bzImage-e84a4e36.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/8dedd3eb07ed/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+0dec0d...@syzkaller.appspotmail.com

general protection fault, probably for non-canonical address 0xdffffc0000000009: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000048-0x000000000000004f]
CPU: 0 PID: 3550 Comm: syz-executor148 Not tainted 6.1.35-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:__lock_acquire+0x69/0x1f80 kernel/locking/lockdep.c:4926
Code: df 0f b6 04 10 84 c0 0f 85 fb 15 00 00 83 3d f1 85 e9 0c 00 0f 84 a8 14 00 00 83 3d c0 79 75 0b 00 74 2b 4c 89 f0 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 f7 e8 39 46 76 00 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc90003aefb00 EFLAGS: 00010006
RAX: 0000000000000009 RBX: 0000000000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000048
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff8880297a8000 R14: 0000000000000048 R15: 0000000000000001
FS: 00007fdc0782c700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe5c1def88 CR3: 000000007bb80000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5669
__raw_write_lock include/linux/rwlock_api_smp.h:209 [inline]
_raw_write_lock+0x2a/0x40 kernel/locking/spinlock.c:300
__drop_extent_tree fs/f2fs/extent_cache.c:966 [inline]
f2fs_drop_extent_tree+0x274/0x4d0 fs/f2fs/extent_cache.c:982
f2fs_insert_range+0x2d5/0x3c0 fs/f2fs/file.c:1666
f2fs_fallocate+0x4e0/0x6d0 fs/f2fs/file.c:1840
vfs_fallocate+0x547/0x6b0 fs/open.c:323
ksys_fallocate fs/open.c:346 [inline]
__do_sys_fallocate fs/open.c:354 [inline]
__se_sys_fallocate fs/open.c:352 [inline]
__x64_sys_fallocate+0xb9/0x100 fs/open.c:352
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdc07880479
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdc0782c2f8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fdc0790a7a0 RCX: 00007fdc07880479
RDX: 0000000000000000 RSI: 0000000000000020 RDI: 0000000000000005
RBP: 00007fdc078d7818 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000010000 R11: 0000000000000246 R12: 00007fdc078d76e0
R13: 0030656c69662f2e R14: 4b55cd3db08b6c4e R15: 00007fdc0790a7a8
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0x69/0x1f80 kernel/locking/lockdep.c:4926
Code: df 0f b6 04 10 84 c0 0f 85 fb 15 00 00 83 3d f1 85 e9 0c 00 0f 84 a8 14 00 00 83 3d c0 79 75 0b 00 74 2b 4c 89 f0 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 f7 e8 39 46 76 00 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc90003aefb00 EFLAGS: 00010006
RAX: 0000000000000009 RBX: 0000000000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000048
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff8880297a8000 R14: 0000000000000048 R15: 0000000000000001
FS: 00007fdc0782c700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe5c1def88 CR3: 000000007bb80000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: df 0f fisttps (%rdi)
2: b6 04 mov $0x4,%dh
4: 10 84 c0 0f 85 fb 15 adc %al,0x15fb850f(%rax,%rax,8)
b: 00 00 add %al,(%rax)
d: 83 3d f1 85 e9 0c 00 cmpl $0x0,0xce985f1(%rip) # 0xce98605
14: 0f 84 a8 14 00 00 je 0x14c2
1a: 83 3d c0 79 75 0b 00 cmpl $0x0,0xb7579c0(%rip) # 0xb7579e1
21: 74 2b je 0x4e
23: 4c 89 f0 mov %r14,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) <-- trapping instruction
2e: 74 12 je 0x42
30: 4c 89 f7 mov %r14,%rdi
33: e8 39 46 76 00 callq 0x764671
38: 48 rex.W
39: ba 00 00 00 00 mov $0x0,%edx
3e: 00 fc add %bh,%ah


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